Why Does Drinking Milk Make Some People Sick?

Most humans lose the ability to digest lactose after early childhood because:

• they develop an allergy to lactose.

• the production of lactase enzyme decreases.

• they consume less dairy products.

• their digestive system matures.

The difference between lactose and lactase is:

• Lactose is a sugar, while lactase is an enzyme.

• Lactose is an enzyme, while lactase is a sugar.

• Both are sugars.

• Both are enzymes.

Lactase persistence is:

• the ability to digest lactose in adulthood

• a condition where lactase is absent

• a temporary lactose intolerance

• an enzyme that breaks down proteins

Tags

NGSS.HS-LS1-1

Fill in the blank: The gene that codes for the lactase enzyme begins to 'turn off' or stop being expressed after ________.

• childhood

• infancy

• adolescence

• adulthood

The map in the image shows:

• Population density

• Climate zones

• Political boundaries

• Topographical features

Lactase persistence is:

• the ability to digest lactose in adulthood

• a condition where lactase is absent

• a temporary intolerance to lactose

• an allergy to milk proteins

Some people who do not produce lactase can still tolerate some dairy products because:

• they have a different enzyme that breaks down lactose.

• they consume dairy products in small amounts.

• the dairy products they consume are low in lactose.

• they have developed a tolerance over time.

Fill in the blank: Many types of food made from animal milk, such as ice cream, yogurt, and cheese, are also available in ______ forms.

• alternative

• dairy

• liquid

• solid

Which is not a symptoms of lactose intolerance?

• Fatigue

• abdominal pain

• Fever

• diarrhea

Lactose tolerance is...

• Lactose tolerance is a digestive disorder characterized by the inability to digest lactose.

• Lactose tolerance is a digestive characterized by the ability to digest lactose.

• the hair lost

Tags

NGSS.HS-LS3-2